Lewis Hamilton says you have to be most efficient driver you've ever been

Last year was the seven-time F1 World Champion's first with the sport's oldest and most glamorous team and for the first time in his career the sport's most successful driver failed to stand on the podium.

Teammate Charles Leclerc also outscored the Briton by 86 points.

Now 41, Hamilton needs Ferrari to be back on form - after a winless 2025 - and new engines and the biggest technical overhaul in decades will mean drivers have to adapt to new ways of racing.

"This is the biggest regulation shift I think our sport has seen, at least in my time," he said in an interview released by Ferrari after he had completed a few laps of the Fiorano test track on a misty morning as fans watched from a nearby bridge.

Hamilton added: "Every single time that it has been a shift into a new regulation, it's been a massive challenge. Everyone starts from scratch, so it really levels the playing field."

Hamilton said Ferrari could develop faster, come up with new ideas and fight at the same pace as rivals with the drivers playing a key role.

He went on: "As drivers we adapt ... it's going to be a massive challenge for every driver to adapt to particularly the power unit.

"This is a period of time when you have to learn to be the most efficient driver you've ever been, utilising all the tools you have in your armoury ... to save fuel, to recharge power, utilise the power, use the grip and put all these things together."

Most of the new cars will be on track together for the first time in Barcelona next week, with each team selecting three days to test out of the five available.

Ferrari boss Fred Vasseur said his team would test on Tuesday and Thursday with the other day yet to be decided.

The smaller and lighter car marks a return to gloss paintwork after seven seasons of matte, with a brighter and more intense red and a larger expanse of white around the cockpit area and engine cover.

Ferrari have not won an F1 Championship since 2008, with Kimi Raikkonen in 2007 their last winner of a drivers' crown. (Reporting by Alan Baldwin)